Unlock iPhone 4/3Gs - iPhone 3G and 4 iOS 4.3.x, 4.3.4,4.3.5,5 Can Be Easily Beta firmware unlocked by Ultrasn0w 1.2.3. The IOS 4.3.x, 4.3.4,4.3.5,5 Beta is an iPhone unlock baseband Which is an older supporter and it is Unable to support the new published baseband function, It was only well-suite with IOS 4.3.x, 4.3.4,4.3.5,5 Beta. The supports are basebands 01.59.00, 05.11.07, 04.26.08, 05.12.01, 05.14.02 and 06.15.00, it Can Be Compatible With Any iPhone and types of baseband There are FEW Which are not compatible With Every iPhone Such as: 02.10.04, 05.15.04, 04.10.01 and 05.14.02. iPhone Dev Team is Engaged in Working with baseband downgrade methods. iPhone 3G baseband is not a support dog and the user upgrade baseband to 06.15.00 Which is Used to unlock the device.Certain procedure is needed for unlocking iPhone 4, 3GS Beta 4.3.x, 4.3.4,4.3.5,5 With The help of ultrasn0w. Henco, the Following Can Be Used process For This purpose. At the outset, You Need to jailbreak your iPhone on IOS 4.3.x, Beta 4.3.4,4.3.5,5 Then only the dog go on unlocking process. Firstly, open the Cydia. Secondly, search for and start ultrasn0w Installing tab on it, installation of ultrasn0w Means It Will unlock iPhone 3G IOS 4.3.x, 4.3.4,4.3.5,5 Beta With The baseband 04.26.08, 01.59.00, 06.15.00, 05.12.01, 05.11.07, 05.13.04, if the installation process gets completed reboot the iPhone You Should.If You have unlocked your iPhone 4.3.x, 4.3.4,4.3.5,5 Beta on iPhone 4 and 3G with the help of ultrasn0w Then you are secure to use SIM from Any carrier. You Can Also subscribe ultrasn0w-through twitter, email and facebook. Now, unlocking your iPhone is not a headache Because you made ​​it possible ultrasn0w.